4 inch stem casters
4 inch stem casters represent a crucial component in material handling and mobility solutions, offering exceptional versatility and reliability across various applications. These robust wheels feature a distinctive stem mounting system that provides secure attachment to equipment and furniture. The stem design typically incorporates a grip ring or expanding adapter mechanism, ensuring stable installation and preventing unwanted movement. These casters are engineered with precision-bearing systems that facilitate smooth rolling motion while maintaining impressive load-bearing capabilities, typically supporting weights between 200 to 350 pounds per caster. The wheels are available in various materials, including polyurethane, rubber, or nylon, each offering specific advantages for different environments. Polyurethane wheels provide excellent floor protection and quiet operation, while rubber offers enhanced shock absorption and grip. The 4 inch diameter provides an optimal balance between maneuverability and stability, making these casters suitable for both industrial and institutional applications. Many models feature dual-locking mechanisms that secure both the wheel rotation and swivel movement, ensuring complete immobilization when required.